I take one scoop whey and a banana. They 30-60 minutes later I eat a big meal with complex carbs, protein and veggies.

When I was bulking in the good ole days my post-workout meal was 32 ounces of chocolate milk and a convenience store little cherry pie. Then I would go home and eat until I burst. I had a fast metabolism though, even up until 2000. I could pretty much eat non-stop and maybe gain 1-2 pounds per month max.